Hanging sliding doors



(No Modei.)

B. KNOPP.

HANGING SLIDING DOORS. No. 246,152. I Patented Aug. 23,1881

UNITED STATES PATENT OFFICE.

BENJAMIN KNOPP, OF BLOOMVILLE, OHIO.

HANGING SLIDING DOORS.

SPECIFICATION forming part of Letters Patent No. 246,152, dated August 23, 1881.

Application filed April 30, 1881. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN KNoPP, a citizen of the United States, residing at Bloomville, in the county of Seneca and State of Ohio, have invented new and useful Improvements in Hanging Sliding Doors, of which the following is a specification.

My invention relates to improvements in doors adapted to be opened and closed by a sliding movement upon suspending rollerframes; and the objects of my improvements are to provide for maintaining the door free from binding in sliding to open or to close itthat is, to provide for a slight oscillation of the door upon its carrying roller-frames by pivotal connections of the latter with independent door-suspending brackets, and to prevent the displacement of the door at its lower end, so that, the hangers holding the door at the top, it is also held at the bottom by connections with that side of the frame over which the door opens. The hanging of the door from pivotal connections with theroller-frames and at points centrally between the rollers and above the door causes the latter to hang in vertical position, giving both the roller-frames and the door easy rolling movements, and is the primary feature of my invention. The rollerframes are formed with extensions, which lap over the door on the inner side of the brackets, which extend from and above the door and lap over said roller-frames for holding the door secure at the top.

Referring to the accompanying drawings, Figure 1 represents an outside elevation of a sliding door embracing my invention 5 Fig. 2, a vertical section of the same; and Fig. 3, the roller-frame and the door bracket, showing their pivotal and lapping connection with each other and with the top of the door; and Figs. 4 and 5 show enlarged sectional views.

The door a is supported by a horizontal top rail, 12, upon and over which the roller-frames c are adapted to move in sliding the door, two such roller-frames being used for hanging and carrying large and heavy doors for farm-build ings and the like.

Hitherto the roller-frames have been rigidly connected with the door, and from various causes such rigid connection produced binding and more or less difficulty in opening and closing the door. To avoid this and give an easy movement to the door, I make the hanging and carrying device of two partsa rollerframe, 0, and a fixed doorbracket, dconnected to each other by a strong pivot, c, at a point above the top of the door.

The roller-frame is of triangular form, having three arms, the rollersff being journaled in two of them, and the third arm, 0, extending centrally downward a sufficient length to cross the top rail and lap over the outer side of the door.

The bracket dis rigidly secured to the door and extends above it in position centrally with the rollers, and is pivoted to the frame 0 in vertical line with and above the arm 0, the upper portion of said bracket being set out from the door so as to lap over the roller-frame arm 0, so that, the roller-frame being held by the-rollers in the groove of the top rail, the lapping relations of the fixed door-bracket d and the depending arm 0 of the roller-frame prevent the door from being forced inward or outward at the top. The door is thus suspended by rigidly-attached brackets and carried by pivoted roller-frames, so that it is free to ban g in vertical position, and to haveaslight oscillation upon said pivots to prevent the top of the door from binding with the under side of the top rail. Such pivoted connection of the door-hangers also avoids difficulties incident to a want of trueness in the horizontal plane of the top rail or in the vertical positions of the fixed hangers.

The top rail is formed with a ridge, g, and a groove, h, and the rollers are formed with a roller part, 1', running upon the ridge g, and a flange,j, running within the rail-groove, thus lookin g the roller-frames to said rail.

To prevent the lower end of the door from being forced outward, I provide that side of the frame It over which the door slides in being opened and closed with one or more flanged rolls, 1, adapted to receive a horizontal plate, m, secured to the inner side of the door, and fitted to slide freely over said roll, so as to be secured by its flange, and thus hold the door from being displaced at its bottom, while at its top the lapping parts 0 and d prevent the dis- IOC placement of the door at its top. By this construction the pivots 0 need only be riveted to the brackets or to the roller-frame, which reuders it convenient in applying the hanging device.

I claim 1. In suspended sliding doors, the combination, with the top grooved rail, 1), and the door suspended in the described relation to said rail, of a hanger or hangers, 0, provided with rollers and a bracket or brackets, d, rigidly secured to the inner side of the door and pivotally connected to said hanger or hangers above the lower side of said grooved rail, substantially as described, for the purpose speci fied.

2. In a sliding door, the combination of a roller-framehavin g a centrally-dependingarm, c, with a suspending-bracket, d, rigidly secured to the door and centrally pivoted to said roller-frame, the said depending arm 0 overlapping the door, and the said rigidly-con nected bracket overlapping said arm and pivoted in vertical line therewith above the door, substantially as described, for the purpose specified.

3. The combination, in a sliding door, ot hangers provided with rollers and pivotally connected to suspending-brackets fixed to the door, substantially as described, with a horizontal door-plate, m, and flanged roll I, secured to the frame near the bottom of the door, subsitalntially as described, for the purpose speci- 4. In a sliding door, the combination, with the top grooved rail, 1), and a door suspended therefrom, of the triangular roller-frames c, the suspending door-brackets d, pivotally connected therewith in vertical line with arm 0, of the triangle on the outside of said arm and at the outside of said door, and a horizontal plate, 122, on the inner side of the door, adapted to have a sliding movement over and be secured by a flanged roll, I, substantially as described, for the purpose specified.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

BENJAMIN KNOPP.

Vita esses:

DANIEL RODEGEB, J AMES BECK. 

